Anti-CD221 Antibody [1H7]

Store undiluted at -20°C only. Storage in frost free freezers is not recommended. Avoid freeze-thaw cycles. Should this product contain a precipitate we recommend microcentrifugation before use.

Monoclonal

1 mg/ml

Protein G affinity chromatography of tissue culture supernatant.

This antibody recognises human CD221, a ~155 kDa receptor tyrosine kinase, also known as Insulin-like growth factor I receptor (IGF-I Receptor). CD221 is composed of two extracellular alpha-subunits and two transmembrane beta-subunits. Clone 1H7 recognises an epitope in the alpha subunits of CD221, demonstrated by western blotting. CD221 is expressed in a range of tissues, including kidney, liver, placenta, mammary gland, brain, ovary and skin.The ligands for CD221 include IGF-I and IGF-II, which bind to CD221 and activate tyrosine kinase activity, resulting in phosphorylation of several intracellular signaling proteins. Clone 1H7 is reported to partially block binding of IGF-I and IGF-II to CD221.